All images were obtained using appropriate optical filter settings on a multifluorescent sub-micron-bead calibrated (Life Technologies) AxioImager Z1 ApoTome microscope system (Carl Zeiss, Jena, Germany) equipped with Plan-Apochromat lenses (100x/NA1.40; 63x/NA1.40) and an AxioCam MRm camera.
Source: wiktionary